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Hermiston, United States Snapshot 2026
Where is Hermiston?
Hermiston, United States
- Continent
- Americas
- Country
- United States
- City
- Hermiston
- Population
- 17.2K
- Elevation
- 140 m
- Coordinates
- 45.84°, -119.29°
Hermiston is a city in United States with a population of approximately 17.2K. Average temperatures range from -1°C (30°F) in January to 36°C (96°F) in July. The best time to visit is May, June, July, August, September. The city sits at an elevation of 140 m above sea level.
Time in Hermiston right now
Open full time & time zone page 14:13 13
Monday, June 15, 2026
IANA time zone
America/Los_Angeles
Daylight saving
DST in effect
PST / PDT
Next DST change
November 1
backward -1h
Live weather in Hermiston
Daylight in Hermiston today
View full sunrise & sunset page Sunrise
Sunset
Day length
15h 42m
Climate normals for Hermiston
Long-term monthly averages based on historical data.
January
Poor 
February
Poor March
Fair April
Good May best
Excellent June best
Excellent July best
Excellent August best
Excellent September best
Excellent October
Good November
Poor December
Poor | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | 7°C / -1°C | 3°C / -5°C | 10days (43 mm) Wet | 5.6h Fair | 80% Humid | 1.8 Low | Poor | View Details |
| February | 9°C / 0°C | 5°C / -4°C | 10days (38 mm) Wet | 7h Good | 72% Muggy | 2.6 Moderate | Poor | View Details |
| March | 14°C / 3°C | 11°C / 0°C | 9days (36 mm) Wet | 9h Good | 65% Muggy | 4.2 Moderate | Fair | View Details |
| April | 19°C / 7°C | 16°C / 4°C | 6days (27 mm) Good | 10.9h Excellent | 51% Moderate | 5.7 High | Good | View Details |
| May best | 26°C / 12°C | 23°C / 9°C | 5days (23 mm) Good | 12.4h Excellent | 44% Moderate | 6.6 High | Excellent | View Details |
| June best | 30°C / 16°C | 28°C / 14°C | 2days (12 mm) Excellent | 13.3h Excellent | 37% Comfortable | 7 High | Excellent | View Details |
| July best | 36°C / 20°C | 34°C / 18°C | 0days (1 mm) Excellent | 13.8h Excellent | 30% Comfortable | 7.3 Very High | Excellent | View Details |
| August best | 35°C / 20°C | 33°C / 19°C | 1days (3 mm) Excellent | 12.5h Excellent | 34% Comfortable | 6.4 High | Excellent | View Details |
| September best | 29°C / 15°C | 26°C / 14°C | 3days (10 mm) Excellent | 10.8h Excellent | 45% Moderate | 5.2 High | Excellent | View Details |
| October | 20°C / 8°C | 16°C / 6°C | 6days (31 mm) Good | 8.5h Good | 60% Moderate | 3.5 Moderate | Good | View Details |
| November | 12°C / 3°C | 9°C / 0°C | 9days (40 mm) Wet | 6.4h Fair | 76% Humid | 2 Low | Poor | View Details |
| December | 7°C / 0°C | 3°C / -4°C | 10days (45 mm) Wet | 5h Fair | 80% Humid | 1.4 Low | Poor | View Details |
Monthly Temperatures
HighLow
Line chart showing monthly temperatures. Jan: 7°C / -1°C . Feb: 9°C / 0°C . Mar: 14°C / 3°C . Apr: 19°C / 7°C . May: 26°C / 12°C . Jun: 30°C / 16°C . Jul: 36°C / 20°C . Aug: 35°C / 20°C . Sep: 29°C / 15°C . Oct: 20°C / 8°C . Nov: 12°C / 3°C . Dec: 7°C / 0°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 43 mm. Feb: 38 mm. Mar: 36 mm. Apr: 27 mm. May: 23 mm. Jun: 12 mm. Jul: 1 mm. Aug: 3 mm. Sep: 10 mm. Oct: 31 mm. Nov: 40 mm. Dec: 45 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 80%. Feb: 72%. Mar: 65%. Apr: 51%. May: 44%. Jun: 37%. Jul: 30%. Aug: 34%. Sep: 45%. Oct: 60%. Nov: 76%. Dec: 80%.
Monthly Wind Speed
Wind SpeedGusts
Bar chart showing monthly wind speed. Jan: 15 km/h . Feb: 19 km/h . Mar: 19 km/h . Apr: 21 km/h . May: 21 km/h . Jun: 21 km/h . Jul: 19 km/h . Aug: 18 km/h . Sep: 17 km/h . Oct: 18 km/h . Nov: 17 km/h . Dec: 16 km/h .
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 2. Feb: UV 3. Mar: UV 4. Apr: UV 6. May: UV 7. Jun: UV 7. Jul: UV 7. Aug: UV 6. Sep: UV 5. Oct: UV 4. Nov: UV 2. Dec: UV 1.
Frequently Asked Questions
Hermiston has a population of approximately 17.2K.
The best months to visit Hermiston are May, June, July, August, September, when temperatures are pleasant and rainfall is lower.
Hermiston receives approximately 309mm of rainfall annually across 71 rainy days.
Hermiston is located in United States, in the Americas region.
Hermiston sits at an elevation of 140 m (459 ft) above sea level.